Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Resonator 479.450MHz Part No: MA08343 Model: TC0238A Rev. No: 1 A. FEATURES: One-Port Resonator B. MAXIMUM RATING: 1. Input Power Level: 0dBm 2. DC voltage: 12V 3. Operating Temperature: -40°C to +85°C 4. Storage Temperature: -40°C to +85°C C. ELECTRICAL CHARACTERISTICS: Reference Temperature TA=25°C Characteristic Units Min. Typ. Max. MHz 479.375 479.450 479.525 dB - 1.41 2.5 6000 10000 - ppm/yr - - ±10 Motional capacitance C1 fF - 1.36 - Motional inductance L1 μH - 80.9 - Motional resistance R1 Ohm - 20.42 - Parallel capacitance Co pF - 2.77 - ppm/c*2 - 0.032 - deg. C 10 25 40 Center frequency Fc Insertion Loss IL Unload quality factor QU Ageing of fc Frequency Temperature coefficient (TCf) Turnover To Package size SMD 3 X 3 X 1.1mm Temperature dependence of fc: fc (TA) = fc (TO) (1+TCf (TA-TO)2) TC0238A v1 1 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Resonator 479.450MHz Part No: MA08343 Model: TC0238A Rev. No: 1 D. OUTLINE DRAWING: E. EQUIVILENT CIRCUIT: One-Port Resonator: Source Impedance 50Ω Load Impedance C0 #B #E R1 C1 TC0238A v1 50Ω L1 2 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Resonator 479.450MHz Part No: MA08343 Model: TC0238A Rev. No: 1 F. FREQUENCY CHARACTERISTICS: Resonator 479.45MHz Frequency Charactristics (S21) 0 -5 -10 B d -15 -20 -25 -30 477.95 478.45 478.95 479.45 479.95 480.45 480.95 Frequency (Center Frequency 479.45MHz Span 3MHz) G. TEST CIRCUIT: Network analyzer From 50Ω Network Analyzer B E SAW Resonator To 50Ω Network Analyzer A, C, D, F TC0238A v1 3 Tel: +44 1460 256 100 Fax: +44 1460 256 101 www.golledge.com Golledge Electronics Ltd Eaglewood Park, ILMINSTER Somerset, TA19 9DQ, UK SAW Resonator 479.450MHz Part No: MA08343 Model: TC0238A Rev. No: 1 H. PACKING: 1. Reel Dimension 2. Tape Dimension TC0238A v1 4